Finding the Fourth Proportional to 1,278,506.97, 1,764,381.96 and 697,761.81
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Solution
The fourth proportional to 1,278,506.97, 1,764,381.96 and 697,761.81 is: 962,934.41
Step by Step Solution
- Step 1: Write the proportion equation
1,278,506.97 : 1,764,381.96 = 697,761.81 : x - Step 2: Convert to fraction form
1,278,506.97/1,764,381.96 = 697,761.81/x - Step 3: Cross multiply
1,278,506.97x = 1,764,381.96 × 697,761.81 - Step 4: Simplify right side
1,278,506.97x = 1,231,118,349,940.95 - Step 5: Solve for x
x = 1,231,118,349,940.95/1,278,506.97 - Step 6: Final answer
x = 962,934.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.